Anis Rahman, PhD

Evaluating the efficacy of strategies for silicon/graphite anodes in Li-ion batteries. This paper, published on Nov 3 2024, compares two strategies for making the anodes of high energy density cells: (A) Using a Silicon-Graphite composite anode active material with a specific capacity of 650 mAh/g; OR (B) Blending a high specific capacity (1400 mAh/g) additive with graphite, to achieve the SAME anode reversible capacity of 650 mAh/g. The paper concludes that (A) yields higher performance than (B). Similarily, OneD Battery Sciences SINANODE process adds nano-silicon inside the pores of EV-grade graphite particles from qualified suppliers, to create composite anode materials. The silicon nanowires inside the graphite pores add 3250 mAh/g reversible capacity to the graphite. With SINANODE, there is no inactive silicon or inactive carbon or void added to the graphite, and there is no need to manufacture a new carbon substrate to host the graphite. By contrast, other silicon technologies include proprietary meso-porous hard carbon particles infused with nano-silicon to create high specific capacity additives. The HC-Si additives contain lots of inactive silicon, inactive carbon and voids, resulting in low density powders that must be mixed with graphite to create blended anodes. SINANODE anodes can be calendared to EV-specs (such as 1.7 g/cc) and achieve higher cell energy density with less silicon and lower cost than the cells with HC-Si blended with graphite. The key question about the use of silicon in the anodes of EV cells is NOT how much silicon can a technology add (the so-called “silicon dominant paradigm”, but how little silicon is necessary to achieve high energy density and charging speed at the lowest cost and risk possible. EV cell makers and OEMs are driven by demand for better EVs that cost less, and by the need to have a road map to large-scale adoption that is lowers execution risks. SINANODE delivers a Better, Easier, Cheaper solution for EV cells. #evbatteries #silicon #sinanode

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How does a single-crystal NMC cathode look after 20,000 cycles? A lot better than a polycrystalline cathode after 2,400 cycles! Check out our newest publication that uses in-situ µCT and XRD of cycled pouch cells to see just how different these materials can be - even after the equivalent of driving 5 million miles! https://lnkd.in/gxeFzQyz

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Congrats Gengnan Li! https://lnkd.in/eVhpu9ZM 🌟 Research Alert! 🌟 Study from Brookhaven National Laboratory and Stony Brook University 🌍🔬 Work led by Gengnan Li where we explored how platinum (Pt) and cerium oxide (CeO2) work together during the water-gas shift reaction. This reaction helps produce clean hydrogen fuel, which is important for our future energy needs. 🚀🔋 We used advanced tools at Brookhaven National Laboratory's National Synchrotron Light Source II #NSLSII and Center for Functional Nanomaterials #CFNatBrookhaven to see what happens to these particles during the reaction. We found that the shape and structure of the CeO2 support affects how well the Pt particles can do their job. This research helps us understand how to make better catalysts for cleaner energy. Ashley Head Dmitri Zakharov Tianhao Hu Ira Waluyo Adrian Hunt Priscilla Antunez PhD #CleanEnergy #HydrogenFuel #ScientificResearch #BrookhavenNationalLaboratory #StonyBrookUniversity #Catalysis #Innovation

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Did you miss our live webinar on Navigating the New EPA Regulations? No worries! Catch up on-demand to hear Asa Carré-Burritt and Ryan Streams share how these regulations will impact your operations and how you can create a strategy that reduces your risk and helps you stay compliant. #EPA #methaneemissions #OilandGas

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Here is a review regarding why we have failed to unravel the degradation of alloying anodes like Si for LIB for last couple of decades. Volume expansion looks natural, which is out of our control. Here is a comparison between diffusion controlled reaction and interface controlled reaction which can help us to figure out how we can completely manipulate the merits of alloying anodes without degradation. My group will continue to prepare for the textbook-type of reviews to help junior researchers understand the main problems for each part of secondary batteries! This review is the first one among them.

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Insights from photonics leaders: Career advice for future innovators. Explore invaluable career advice from renowned figures in the photonics industry. Gain insights on building successful careers, navigating challenges, and embracing innovation from leaders shaping the future of photonics. Nominate for The Photonics100 2025: https://ow.ly/9APu50SbSMH

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The Royal Society of Chemistry Publishing has published a new article describing many types and uses of graphene. Recent advances in graphene-based electroanalytical devices for healthcare applications By: Vinay KammarcheduORCID logoabc, Heshmat Asgharianac, Keren ZhouORCID logoac, Pouya Soltan Khamsiac and Aida Ebrahimi First published on 29th May 2024 Graphene, with its outstanding mechanical, electrical, and biocompatible properties, stands out as an emerging nanomaterial for healthcare applications, especially in building electroanalytical biodevices. With the rising prevalence of chronic diseases and infectious diseases, such as the COVID-19 pandemic, the demand for point-of-care testing and remote patient monitoring has never been greater. Owing to their portability, ease of manufacturing, scalability, and rapid and sensitive response, electroanalytical devices excel in these settings for improved healthcare accessibility, especially in resource-limited settings. Read more: https://lnkd.in/eNam4Sqs... #GrapheneRevolution #graphene #medicaldevices #FutureTech

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Today's newsletter is a cornucopia of pre-Thanksgiving photonics goodness, starting with Alluxa, Inc's look at temperature dependence in optical filters. Add in a little Piezo-based nanopositioning for ophthalmology from PI (Physik Instrumente) Group and a look at SWIR multimode tracking developments at SUI from Sensors Unlimited Inc, a Raytheon Company and you're really starting to cook. Finish up with Revolutionized's deep dive on nanopositioners, as well as a couple of surprises, and you're looking at one fine newsletter. https://lnkd.in/eXtcBJ_t

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Brillouin Scattering and Optomechanics — This special issue of APL Photonics explores the forefront of Brillouin scattering and optomechanics research, highlighting recent advancements and emerging trends.

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🚀 Excited to share that our latest research, "Hybrid Screen Printable Electrolyte for Large-Scale Flexible Electrochromic Display Production", is now published in Advanced Materials Technologies! 🔥 In this study, we developed an innovative screen-printable quasi-solid polymer electrolyte (p-QSPE) that combines high ionic conductivity, durability, and efficiency for fully screen-printed electrochromic displays. This innovation could streamline ECD production and enhance their performance, bringing us closer to large-scale flexible displays! Thanks to our former PhD student Fábio for driving this project forward! And to our partners at Ynvisible Interactive Inc for enabling the testing of these formulations in an industrial setting. This collaboration highlights the tangible, real-world impact collaborative academic research can achieve! Read more about our findings here: https://lnkd.in/dsUz37Tt #Electrochromics #MaterialScience #FlexibleDisplays #ResearchInnovation #AdvancedMaterials #Collaboration #Intersectoral #Impact

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This EBSD phase map of a semiconductor microsolder bump reveals the intricate layers of phases and the existence of unwanted Sn and Ag rich intermetallic compounds. The field of view spans 26 µm. This captivating image was captured using the Symmetry detector 🔬 and AZtecHKL, and then meticulously processed using AZtecCrystal software. Download our application note which provides brief examples of the use of the EBSD technique and in particular, the Symmetry detector and the AZtecCrystal data processing software, for the effective characterisation of microstructures in a range of microelectronics samples 👉 https://okt.to/CHAVUD #EBSD #Microstructures #PhaseMap

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Check out the November-1 issue of Nanomaterials: 👉 https://lnkd.in/eCc-M9XT In the cover story, Penghui Song and co-workers reveal robust conformational stability in double-twisted nanographene with four [6]helicene units, resisting racemization until temperatures exceed 200 °C—a key insight into twist chirality in nanographenes. 🔑 nanographene; twist; helicene

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【Efficient Permeable Monolithic Hybrid Tribo-Piezo-Electromagnetic Nanogenerator Based on Topological-Insulator-Composite】 Advanced Materials (IF 27.4) Pub Date : 2024-09-02 , DOI:10.1002/adma.202408936 Escalating energy demands of self-independent on-skin/wearable electronics impose challenges on corresponding power sources to offer greater power density, permeability, and stretchability. Here, a high-efficient breathable and stretchable monolithic hybrid triboelectric-piezoelectric-electromagnetic nanogenerator-based electronic skin (TPEG-skin) is reported via sandwiching a liquid metal mesh with two-layer topological insulator-piezoelectric polymer composite nanofibers. TPEG-skin concurrently extracts biomechanical energy (from body motions) and electromagnetic radiations (from adjacent appliances), operating as epidermal power sources and whole-body self-powered sensors. Topological insulators with conductive surface states supply notably enhanced triboelectric and piezoelectric effects, endowing TPEG-skin with a 288 V output voltage (10 N, 4 Hz), ∼3 times that of state-of-the-art devices. Liquid metal meshes serve as breathable electrodes and extract ambient electromagnetic pollution (±60 V, ±1.6 µA cm−2). TPEG-skin implements self-powered physiological and body motion monitoring and system-level human-machine interactions. This study provides compatible energy strategies for on-skin/wearable electronics with high power density, monolithic device integration, and multifunctionality.  https://lnkd.in/eX9rQsvJ

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Only a few days left to submit your abstract for #AFMAdvances2024! Be sure to do so by 𝗔𝗽𝗿𝗶𝗹 𝟯𝟬. Submission guidelines here 👉 https://okt.to/3H05hG. #AtomicForceMicroscopy #Nanotechnology #Graphene #BatteryResearch

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*****New Publication Alert ***** New paper in American Chemical Society’s #ACSNano journal.   “Thermodynamic and Kinetic Behaviors of Electrolytes Mediated by Intermolecular Interactions Enabling High-Performance Lithium-Ion Batteries”. Electrolyte solvation chemistry regulated by lithium salts, solvents, and additives has garnered significant attention since it is the most effective strategy for designing high-performance electrolytes in lithium-ion batteries (LIBs). However, achieving a delicate balance is a persistent challenge, given that excessively strong or weak Li+-solvent coordination markedly undermines electrolyte properties, including thermodynamic redox stability and Li+-desolvation kinetics, limiting the practical applications. Herein, we elucidate the crucial influence of solvent–solvent interactions in modulating the Li+-solvation structure to enhance electrolyte thermodynamic and kinetic properties. As a paradigm, by combining strongly coordinated propylene carbonate (PC) with weakly coordinated cyclopentylmethyl ether (CPME), we identified intermolecular interactions between PC and CPME using 1H–1H correlation spectroscopy. Experimental and computational findings underscore the crucial role of solvent–solvent interactions in regulating Li+-solvent/anion interactions, which can enhance both the thermodynamic (i.e., antireduction capability) and kinetic (i.e., Li+-desolvation process) aspects of electrolytes. Additionally, we introduced an interfacial model to reveal the intricate relationship between solvent–solvent interactions, electrolyte properties, and electrode interfacial behaviors at a molecular scale. This study provides valuable insights into the critical impact of solvent–solvent interactions on electrolyte properties, which are pivotal for guiding future efforts in functionalized electrolyte engineering for metal-ion batteries. https://lnkd.in/gzshmv6J Stay tuned for more exciting news from the School of Physical Sciences at Jawaharlal Nehru University, New Delhi, India.    #JNU, #SPS #SPSJNU #LiIonBattery #Cathode #Anode #Electrolyte #graphiteanode #ElectrolyteAdditives #ElectrolyteMicrostructures #InterMolecularInteraction #EnergyStorage #Batteries #1H1Hcorrelationspectroscopy #desolvationkinetics #solventsolventinteractions #Lisolventanioninteractions #ElectrolyteSolvationChemistry #InterfacialModel #ACS #AmericanChemicalSociety #ACSNano Jawaharlal Nehru University Dr. Prashant Tripathi Avinash Rundla Divya Rani Raghuvanshi Shivani Bharti Rajkamal Arya Manjusha Shelke

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This new Special Issue offers a comprehensive overview of light-activated processes that are valuable for active researchers & those seeking to learn about the current state-of-the-art upconversion optical materials. https://go.acs.org/bjk

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This report examines the role of Low Voltage Electron Microscopy (LVEM) in advancing two-dimensional (2D) materials research. See how LVEM can benefit your research. Click here to learn more -> https://bit.ly/4cauHvh

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A new Sensors International journal pre-proof describes using an NVE ALT025 #TMR #sensor to detect magnetic nanoparticles for biosensing. https://lnkd.in/gbaPb2ku “This [Wheatstone bridge] configuration can prevent temperature drift and increase the sensor stability and sensitivity. Moreover, it can reduce the hysteresis effects and increase the linearity of the sensor output. The ALT025 sensors offer a wide range of linearity (0.001–10 mT), compact dimensions (2.5 × 2.5 mm), and are available at an affordable price ($5.68–$12.00). Because of the presence of two analog outputs in the Wheatstone bridge configuration, sensor sensitivity can be instantly enhanced using a basic differential operational amplifier (OA). Furthermore, this amplified signal can be conveniently linked to a microcontroller such as an Arduino."

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Learn about some recent research of Nanostructures using UV-Visible-NIR microspectrometers from CRAIC Technologies: https://lnkd.in/gUX2nr5Y #microscope #spectroscopy #Microscopy #spectrophotometer #spectrometer #nanotechnology

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